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Discussion Starter · #1 ·
I have a Craftsman Model # 917.258552 lawn tractor with a kohler engine and a hydrostatic transmission. My problem is that after running for about 15 minutes the trnsmission seems to lose power. It starts out gradually and gets to the point where it will not move the tractor at all. I have noticed it is worse if you are on an incline. if you are on level ground the problem does still happen but not as bad. I have purged the transmission, but it does not seem to help. I checked the fluid and it is full. I also checked the transaxle pulley and it is spinning when I have the transmission engaged, but the tractor is still not moving. Any help would be greatly appreciated.
 

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Welcome to the forum dblgun! How many estimated hours of operation / years of operation does the mower have on it?

Since you've already tried purging it, sounds like your probably looking at either trying to rebuild it or replace it by the symptoms.
 

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Not sure if you will be able to check this or not, but when the pulley is turning does it appear that the shaft is turning at the same rate? I have a mower that stripped the splines on the pulley so it was not turning the shaft on the trans.
 

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Discussion Starter · #4 ·
Brad:

As best I can tell the shaft is turning. One thing I did not mention is that the sound level of the transmission rises the longer you run it. It sounds like it is really straining after a few minutes.
 

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Discussion Starter · #5 ·
Mark:

Although the lawnmower is several years old it has not been used very much. I know it sounds like a cliche but it is owned by a little old lady who did not use it very often. She is my next door neighbor and I am just trying to help her out. She's on a fixed income, so I thought I would see if I could do anything for her before taking it to a professional. Maybe save her some money.
 

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Mark:

Although the lawnmower is several years old it has not been used very much. I know it sounds like a cliche but it is owned by a little old lady who did not use it very often. She is my next door neighbor and I am just trying to help her out. She's on a fixed income, so I thought I would see if I could do anything for her before taking it to a professional. Maybe save her some money.
Hilly ground or any snow plowing? That will add some additional wear. Unfortunately if you can still get a replacement they are not cheap. Sears is showing it no longer available for replacement. :(

http://www.searspartsdirect.com/par...P0212168/00003?blt=06&prst=0&shdMod=917258552
 
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